Re: Multiple globals and direct/indirect eval

2011-03-03 Thread David Herman
Hi Jeff, I agree that the spec should deal with multiple global objects. I'm aware of a few of the subtleties of multiple globals, but I wouldn't be surprised if there are more. Thanks for raising this one. I created a placeholder strawman last week, because I've been intending to get into this

Re: "Harmony is a super-set of ES5 strict"

2011-03-03 Thread David Herman
>> So I think it might be a little misleading to say Harmony is strict-only. > > Who ever said that? :-P Yikes... not playing who-said-what. For whatever reason, Waldemar got the impression that someone said it, and I'm correcting the misconception, that's all. > I've written that Harmony is b

Re: "Harmony is a super-set of ES5 strict"

2011-03-03 Thread Brendan Eich
On Mar 3, 2011, at 6:55 PM, David Herman wrote: > So I think it might be a little misleading to say Harmony is strict-only. Who ever said that? :-P I've written that Harmony is based on ES5 strict. But even ES5 strict code can call non-strict code. Same goes for Harmony. It's a big shared-heap

Re: Multiple globals and direct/indirect eval

2011-03-03 Thread Allen Wirfs-Brock
On Mar 3, 2011, at 5:45 PM, Jeff Walden wrote: > On 03/03/2011 04:41 PM, Allen Wirfs-Brock wrote: >> I think your real question reduces to this: >> >> //none strict mode code >> globalObj= function() {return this}(); >> print(otherGlobal.eval("this") === globalObj) //?? >> >> The two different

Re: "Harmony is a super-set of ES5 strict"

2011-03-03 Thread David Herman
On Mar 3, 2011, at 5:33 PM, Waldemar Horwat wrote: > If we're saying that Harmony is strict-only, settable by a tag, what > will indirect eval and the Function constructor do if the evaluated code > doesn't start with a "use strict" directive? Yeah, "strict-only" is probably not quite the righ

Re: LOG10E mystery constant

2011-03-03 Thread Waldemar Horwat
On 02/20/11 21:16, Mark S. Miller wrote: The specification of Math.LOG10E says: 15.8.1.5 LOG10E The Number value for the base-10 logarithm of e, the base of the natural logarithms; this value is approximately 0.4342944819032518. This property has the attributes { [[Writable]]: fal

Re: Multiple globals and direct/indirect eval

2011-03-03 Thread Jeff Walden
On 03/03/2011 04:41 PM, Allen Wirfs-Brock wrote: I think your real question reduces to this: //none strict mode code globalObj= function() {return this}(); print(otherGlobal.eval("this") === globalObj) //?? The two different calls and the "indirect" name in your example may make the question

Re: "Harmony is a super-set of ES5 strict"

2011-03-03 Thread Waldemar Horwat
On 02/25/11 13:26, Brendan Eich wrote: On Feb 25, 2011, at 1:12 PM, Boris Zbarsky wrote: On 2/25/11 4:08 PM, David Bruant wrote: I would tend to be more in favor of disallowing Harmony features in non-strict code (without explicit "use strict" directive) to avoid surprises (I'm nuancing below)

Re: Multiple globals and direct/indirect eval

2011-03-03 Thread Allen Wirfs-Brock
Jeff, I think your real question reduces to this: //none strict mode code globalObj= function() {return this}(); print(otherGlobal.eval("this") === globalObj) //?? The two different calls and the "indirect" name in your example may make the question seen like it is about something else (direct

Multiple globals and direct/indirect eval

2011-03-03 Thread Jeff Walden
A few months back I noticed an interesting interaction between how direct eval is defined and multiple globals. What happens if, in one global, you call an eval from another global as if it were a direct eval? var indirect = otherGlobal.eval; eval = indirect; print(eval("this") === this)